/*
Theme Name: HVACVN
Description: Giao diện độc lập cho HVAC Việt Nam.
Version: 0.5.53
Text Domain: hvacvn
*/

:root {
    --ink: #102843;
    --muted: #48617a;
    --accent: #1454b8;
    --accent-dark: #123e84;
    --paper: #f3f8fd;
    --sky: #dcefff;
    --line: #d7e5f2;
    --radius: 18px;
    --width: 1180px;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.65 system-ui, sans-serif; }
a { color: var(--accent); text-underline-offset: .2em; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
img { max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.025em; }
h1 { font-size: clamp(2.15rem, 5vw, 4rem); margin: .4rem 0 1rem; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
.wrap { width: min(var(--width), 92%); margin-inline: auto; }
.top { background: white; border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .8rem 2rem; padding-block: 1rem; }
.brand { display: inline-flex; gap: .65rem; align-items: center; color: var(--ink); text-decoration: none; font-size: 1.15rem; font-weight: 800; }
.brand-mark { display: grid; place-items: center; width: 2.4rem; height: 2.4rem; border-radius: 10px; background: var(--accent); color: white; font-size: .82rem; letter-spacing: .03em; }
nav ul { display: flex; flex-wrap: wrap; gap: .4rem 1.25rem; list-style: none; padding: 0; margin: 0; }
nav a { font-size: .94rem; font-weight: 700; text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { text-decoration: underline; }
.hero, .page-intro { background: linear-gradient(125deg, #d5ecff, #edf6ff 72%); border-bottom: 1px solid var(--line); }
.hero-layout { display: grid; grid-template-columns: 1.05fr 1fr; align-items: center; gap: clamp(1.6rem, 5vw, 4.5rem); padding-block: clamp(2.5rem, 6vw, 5rem); }
.hero h1 { max-width: 15ch; }
.hero-copy > p:not(.tag), .page-intro p { color: var(--muted); max-width: 52ch; }
.tag { color: var(--accent); font-size: .74rem; font-weight: 800; text-transform: uppercase; letter-spacing: .11em; margin: 0; }
.hero-feature { display: block; border: 1px solid var(--line); background: white; border-radius: var(--radius); overflow: hidden; color: var(--ink); text-decoration: none; box-shadow: 0 12px 32px #18487712; }
.hero-feature img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.hero-feature-copy { display: grid; gap: .35rem; padding: 1.05rem 1.25rem 1.25rem; }
.hero-feature-copy strong { line-height: 1.35; font-size: 1.2rem; }
.hero-feature:hover strong { color: var(--accent); }
.section { padding-block: clamp(1.75rem, 4vw, 3rem); }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: .5rem 1rem; flex-wrap: wrap; margin-bottom: 1.2rem; }
.section-heading h2 { margin: 0; }
.section-heading > a { font-weight: 700; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.15rem; }
.card, .article { background: white; border: 1px solid var(--line); border-radius: var(--radius); min-width: 0; }
.card { padding: 1.35rem; }
.card h3 { margin: .4rem 0; font-size: 1.18rem; }
.card p { margin: .5rem 0 0; color: var(--muted); }
.portal-card { border-top: 3px solid #7fb2f3; }
.portal-card .tag { color: var(--accent); margin: 0; }
.post-card { overflow: hidden; padding: 0; }
.post-card-media { display: block; aspect-ratio: 16 / 9; background: var(--sky); overflow: hidden; }
.post-card-media img { display: block; width: 100%; height: 100%; object-fit: cover; }
.post-card-body { padding: 1.05rem 1.2rem 1.25rem; }
.post-card .post-card-meta, .article-meta { display: flex; flex-wrap: wrap; align-items: baseline; gap: .3rem .8rem; font-size: .84rem; color: var(--muted); margin: 0 0 .65rem; }
.post-card-meta span { color: var(--accent); font-weight: 750; }
.post-card h3 a { color: var(--ink); text-decoration: none; }
.post-card h3 a:hover, .post-card h3 a:focus-visible { color: var(--accent); text-decoration: underline; }
.page-intro .wrap { padding-block: 2.3rem; }
.page-intro h1 { font-size: clamp(2rem, 4vw, 3.1rem); }
.nav-links { display: flex; flex-wrap: wrap; gap: .5rem; margin-block: 1rem; }
.nav-links a, .nav-links .current { display: inline-block; border: 1px solid var(--line); background: white; border-radius: 8px; padding: .35rem .75rem; text-decoration: none; max-width: 100%; overflow-wrap: anywhere; }
.nav-links .current { background: var(--accent); color: white; }
.blog-topics { margin-top: 0; margin-bottom: 1.4rem; }
.article { max-width: 860px; margin-inline: auto; padding: clamp(1.15rem, 5vw, 3.5rem); overflow-wrap: anywhere; }
.article h1 { font-size: clamp(1.9rem, 4vw, 3.1rem); }
.article-cover { margin: 0 0 1.5rem; }
.article-cover img { display: block; width: 100%; border-radius: 12px; }
.article-content { font-size: 1.04rem; overflow-x: auto; }
.article-content h2, .article-content h3 { margin-top: 1.7em; }
.article table { display: block; overflow: auto; }
.article iframe { max-width: 100%; }
.article + .article { margin-top: 1.5rem; }
.article .comment-form textarea { display: block; width: 100%; max-width: 100%; }
.article .comment-form input:not([type="checkbox"]) { max-width: 100%; }
.back-link { display: block; max-width: 860px; margin: 0 auto .8rem; font-weight: 700; }
.search-form { display: flex; flex-wrap: wrap; gap: .6rem; }
.search-form label { flex: 1 1 13rem; max-width: 25rem; }
.search-field, .search-submit { font: inherit; border: 1px solid var(--line); border-radius: 9px; padding: .62rem .85rem; }
.search-field { width: 100%; color: var(--ink); background: white; }
.search-submit { background: var(--accent); color: white; font-weight: 700; cursor: pointer; }
.search-submit:hover { background: var(--accent-dark); }
.error-page {
    padding: clamp(1.5rem, 6vw, 4.5rem) clamp(1rem, 4vw, 3rem);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: radial-gradient(ellipse at top, #dcefff, #f8fbff 72%);
    text-align: center;
}
.error-illustration { display: block; width: min(100%, 240px); margin: 0 auto .75rem; }
.error-page h1 { font-size: clamp(1.9rem, 5vw, 3.5rem); }
.error-description { max-width: 55ch; margin: 0 auto 1.25rem; color: var(--muted); }
.error-page .search-form, .error-links { justify-content: center; }
.error-links { margin-bottom: 0; }
.error-links a:first-child { border-color: var(--accent); background: var(--accent); color: white; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 1rem; top: 1rem; background: white; padding: .5rem; z-index: 99999; }
.screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

@media (max-width: 900px) {
    .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 650px) {
    .hero-layout, .grid { grid-template-columns: minmax(0, 1fr); }
    .top .wrap { gap: .65rem; }
    nav ul { gap: .35rem .85rem; }
}

.breadcrumbs {
    display: flex;
    gap: .6rem;
    margin-bottom: 1rem;
    font-size: .9rem;
    color: var(--muted);
}
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 310px);
    align-items: start;
    gap: clamp(1rem, 3vw, 2rem);
}
.article-column { min-width: 0; }
.article-layout .article { max-width: none; }
.article-detail { padding: clamp(1rem, 3.5vw, 2.5rem); }
.article-end { border-top: 1px solid var(--line); margin-top: 2rem; padding-top: 1rem; }
.article-tags { align-items: center; }
.article-author {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    align-items: center;
    gap: .9rem;
    margin-top: 1rem;
    padding: clamp(.8rem, 3vw, 1.25rem);
    border: 1px solid var(--line);
    border-inline-start: 3px solid #5d9fe1;
    border-radius: 14px;
    background: linear-gradient(110deg, #e9f4ff, #f7fbff);
}
.article-author-avatar {
    display: grid;
    place-items: center;
    aspect-ratio: 1;
    overflow: hidden;
    border: 2px solid white;
    border-radius: 50%;
    background: var(--sky);
    color: var(--accent);
    box-shadow: 0 0 0 1px var(--line);
}
.article-author-avatar img { display: block; width: 100%; height: 100%; object-fit: cover; }
.article-author-copy { line-height: 1.4; }
.article-author-copy span {
    display: block;
    margin-bottom: .2rem;
    color: var(--muted);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.article-author-copy a { color: var(--accent-dark); font-size: 1.1rem; font-weight: 750; text-decoration: none; }
.article-author-copy a:hover { text-decoration: underline; }
.article-sidebar { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; min-width: 0; }
.sidebar-panel { background: white; border: 1px solid var(--line); border-radius: 14px; padding: 1.05rem; }
.sidebar-panel h2 {
    border-bottom: 1px solid var(--line);
    padding-bottom: .7rem;
    margin: 0 0 .8rem;
    color: var(--accent-dark);
    font-size: .93rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.sidebar-categories { display: flex; gap: .4rem; }
.sidebar-categories select, .sidebar-categories button {
    font: inherit;
    font-size: .88rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: .45rem;
}
.sidebar-categories select { min-width: 0; flex: 1; background: white; color: var(--ink); }
.sidebar-categories button { background: var(--accent); color: white; cursor: pointer; }
.sidebar-posts { list-style: none; padding: 0; margin: 0; }
.sidebar-posts li + li { border-top: 1px solid var(--line); padding-top: .75rem; margin-top: .75rem; }
.sidebar-posts a { display: flex; align-items: flex-start; gap: .65rem; color: var(--ink); text-decoration: none; font-size: .9rem; line-height: 1.4; }
.sidebar-posts a:hover strong { color: var(--accent); text-decoration: underline; }
.sidebar-posts img { flex: 0 0 60px; width: 60px; height: 54px; object-fit: cover; border-radius: 6px; }
.sidebar-posts time { display: block; margin-top: .2rem; color: var(--muted); font-size: .78rem; }
.blog-grid .post-card {
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px #18487709;
    transition: box-shadow .2s ease, border-color .2s ease;
}
.blog-grid .post-card:hover, .blog-grid .post-card:focus-within {
    border-color: #a9c8eb;
    box-shadow: 0 10px 24px #18487718;
}
.blog-grid .post-card-media { aspect-ratio: 4 / 3; }
.blog-grid .post-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    gap: .65rem;
    padding: 1.15rem 1rem 1.25rem;
    text-align: center;
}
.blog-grid .post-card h3 {
    margin: 0;
    font-size: clamp(1rem, 1.45vw, 1.18rem);
    font-weight: 750;
    line-height: 1.32;
    letter-spacing: .005em;
    text-transform: uppercase;
}
.blog-grid .post-card-meta {
    order: 1;
    justify-content: center;
    margin: auto 0 0;
    padding-top: .15rem;
    color: #556c84;
}
.blog-grid .post-card-meta span { color: inherit; font-weight: 500; }
.blog-grid .post-card-meta a { color: inherit; text-decoration: none; }
.blog-grid .post-card-meta a:hover, .blog-grid .post-card-meta a:focus-visible {
    color: var(--accent);
    text-decoration: underline;
}
@media (max-width: 900px) {
    .article-layout { grid-template-columns: minmax(0, 1fr); }
}

.blog-intro .wrap { padding-block: clamp(.9rem, 2vw, 1.4rem); }
.blog-intro .tag { display: none; }
.blog-intro h1 { margin: 0 0 .3rem; font-size: clamp(1.6rem, 3vw, 2.35rem); }
.blog-intro p { max-width: none; margin: 0; }
.blog-intro + .section { padding-top: clamp(1rem, 2.4vw, 1.75rem); }
.blog-topics, .blog-pagination { justify-content: center; }

.category-intro .wrap { padding-block: clamp(1.6rem, 4vw, 3rem); }
.category-intro .breadcrumbs { margin-bottom: 1.15rem; }
.category-intro h1 { margin-bottom: 0; }
.category-description { margin-top: .6rem; color: var(--muted); }
.category-description p { max-width: 68ch; margin: .4rem 0 0; }
.category-heading { border-bottom: 1px solid var(--line); padding-bottom: .65rem; }
.category-heading h2 { font-size: clamp(1.2rem, 3vw, 1.6rem); }
.category-heading span { color: var(--muted); font-size: .88rem; }

.blog-topics a[aria-current="page"] { background: var(--accent); border-color: var(--accent); color: white; text-decoration: none; }

.post-title-band { background: #1d6db2; color: white; }
.post-title-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 290px);
    align-items: center;
    gap: 1rem 2.25rem;
    padding-block: clamp(1.65rem, 4vw, 3rem);
}
.post-title-layout h1 {
    margin: 0;
    font-size: clamp(1.6rem, 3vw, 2.65rem);
    text-transform: uppercase;
    letter-spacing: .005em;
    overflow-wrap: anywhere;
}
.post-breadcrumbs {
    flex-wrap: wrap;
    justify-content: flex-end;
    text-align: right;
    color: #e1effc;
    margin: 0;
}
.post-breadcrumbs a { color: white; }
.post-breadcrumb-current {
    flex: 0 0 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
@media (max-width: 800px) {
    .post-title-layout { grid-template-columns: minmax(0, 1fr); }
    .post-breadcrumbs { justify-content: flex-start; text-align: left; }
    .post-breadcrumb-current { display: none; }
}

.woocommerce-products-header .page-description { overflow-wrap: anywhere; }

@media (min-width: 901px) {
    .article-layout > .article-sidebar { position: sticky; top: 1.25rem; }
    .admin-bar .article-layout > .article-sidebar { top: calc(32px + 1.25rem); }
}
.article-adjacent {
    margin-top: 1.5rem;
    border-block: 1px solid var(--line);
    background: white;
}
.article-adjacent .nav-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    margin: 0;
}
.article-adjacent .nav-links a {
    display: flex;
    position: relative;
    flex-direction: column;
    justify-content: center;
    gap: .35rem;
    min-height: 100%;
    padding: 1.2rem 1.25rem 1.2rem 2.65rem;
    border: 0;
    border-radius: 0;
    color: var(--ink);
}
.article-adjacent .nav-next { grid-column: 2; }
.article-adjacent .nav-next a { padding-inline: 1.25rem 2.65rem; text-align: right; }
.article-adjacent .nav-previous + .nav-next { border-left: 1px solid var(--line); }
.article-adjacent a::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 1rem;
    width: .6rem;
    height: .6rem;
    border-left: 2px solid #7793af;
    border-bottom: 2px solid #7793af;
    transform: translateY(-50%) rotate(45deg);
}
.article-adjacent .nav-next a::before { left: auto; right: 1rem; transform: translateY(-50%) rotate(225deg); }
.article-adjacent .adjacent-label { color: var(--muted); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.article-adjacent .adjacent-title { font-size: clamp(1rem, 1.6vw, 1.2rem); line-height: 1.4; }
.article-adjacent .nav-links a:hover { background: var(--sky); color: var(--accent); text-decoration: none; }
@media (max-width: 600px) {
    .article-adjacent .nav-links { grid-template-columns: minmax(0, 1fr); }
    .article-adjacent .nav-next { grid-column: 1; }
    .article-adjacent .nav-previous + .nav-next { border-left: 0; border-top: 1px solid var(--line); }
}

.about-contact-summary {
    background: var(--sky);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.5rem;
    min-width: 0;
    overflow-wrap: anywhere;
}
.about-contact-summary h2, .about-contact-form h2 { margin: .5rem 0 1rem; }
.about-contact-summary h2 { font-size: 1.55rem; }
.about-contact-link { font-weight: 750; }
.about-contact-section { padding-top: 0; scroll-margin-top: 3rem; }
.about-contact-form { margin-inline: 0; }
.about-contact-form label { font-weight: 650; }
.about-contact-form input:not([type="submit"]), .about-contact-form textarea {
    width: 100%;
    min-width: 0;
    margin-top: .35rem;
    padding: .65rem .8rem;
    border: 1px solid #aabfd3;
    border-radius: 8px;
    color: var(--ink);
    background: var(--paper);
    font: inherit;
}
.about-contact-form textarea { resize: vertical; }
.about-contact-form input[type="submit"] {
    background: var(--accent);
    color: white;
    padding: .7rem 1rem;
    border: 0;
    border-radius: 8px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

body:is(.category-blog, .category-download) .category-intro .wrap {
    padding-block: clamp(.9rem, 2vw, 1.4rem);
}
body:is(.category-blog, .category-download) .category-intro .breadcrumbs { margin-bottom: .35rem; }
body:is(.category-blog, .category-download) .category-intro .tag { display: none; }
body:is(.category-blog, .category-download) .category-intro h1 {
    margin: 0;
    font-size: clamp(1.6rem, 3vw, 2.35rem);
}
body:is(.category-blog, .category-download) .category-intro + .section {
    padding-top: clamp(1rem, 2.4vw, 1.75rem);
}


.top {
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 4px 18px #10284314;
}
.admin-bar .top { top: 32px; }
.top .wrap { padding-block: .65rem; }
.top .brand-mark { display: block; width: 32px; height: 32px; flex: 0 0 auto; }
.brand-wordmark { color: var(--accent); font-size: 1.65rem; line-height: 1.2; font-weight: 850; letter-spacing: -.025em; white-space: nowrap; }
.brand-wordmark > span { color: #bd242c; font-weight: 700; }
.top nav ul { gap: .2rem; }
.top nav a { display: block; border-radius: 8px; color: var(--ink); padding: .45rem .65rem; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--accent); background: var(--sky); text-decoration: none; }
#viec-lam, #tin-thiet-bi, #gui-lien-he { scroll-margin-top: 8rem; }
@media (min-width: 901px) {
    .article-layout > .article-sidebar { top: 88px; }
    .admin-bar .article-layout > .article-sidebar { top: 120px; }
}
@media (max-width: 782px) { .admin-bar .top { top: 46px; } }
@media (max-width: 600px) {
    .admin-bar .top { top: 0; }
    .top .wrap { gap: .25rem; padding-block: .45rem; }
    .top .brand-mark { width: 27px; height: 27px; }
    .top .brand-wordmark { font-size: 1.4rem; }
    .top nav { flex-basis: 100%; }
    .top nav ul { justify-content: space-between; gap: 0; }
    .top nav a { font-size: .8rem; padding: .35rem .3rem; }
}




.top nav a { color: var(--accent); text-transform: uppercase; font-weight: 800; font-size: .8rem; }
@media (max-width: 960px) {
    .top .wrap { gap: .35rem .8rem; }
}
@media (max-width: 600px) {
    .top nav a { font-size: clamp(.65rem, 2.6vw, .8rem); padding-inline: .2rem; }
}

.home .hero {
    background: radial-gradient(ellipse at 82% 15%, #bfe3ff 0%, transparent 52%),
        linear-gradient(125deg, #e7f5ff, #f6faff);
}
.home .hero-layout { padding-block: clamp(2.2rem, 5vw, 4.4rem); }
.home .hero h1 { max-width: 17ch; font-size: clamp(2.2rem, 4.9vw, 4.1rem); }
.home .hero h1 span { display: block; color: var(--accent); white-space: nowrap; }
.home .hero-copy .tag { display: inline-block; background: white; border: 1px solid var(--line); border-radius: 30px; padding: .35rem .75rem; }
.home-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.25rem; }
.home-actions a { display: inline-flex; align-items: center; gap: .45rem; border: 1px solid var(--line); border-radius: 9px; padding: .6rem .85rem; background: white; font-weight: 750; text-decoration: none; }
.home-actions a:first-child { background: var(--accent); border-color: var(--accent); color: white; }
.home-actions a:hover { text-decoration: underline; }
.home .hero-feature { position: relative; }
.home .hero-feature-copy { grid-template-columns: 1fr auto; align-items: center; }
.home .hero-feature-copy .tag { grid-column: 1 / -1; }
.home-feature-arrow { color: var(--accent); font-size: 1.35rem; }
.home .portal-card { border-top: 1px solid var(--line); box-shadow: 0 6px 18px #1028430a; }
.portal-card-top { display: flex; align-items: center; justify-content: space-between; gap: .5rem; margin-bottom: .85rem; }
.portal-icon { display: grid; place-items: center; width: 2.65rem; height: 2.65rem; flex: none; border-radius: 11px; color: var(--accent); background: var(--sky); }
.portal-icon svg { width: 21px; height: 21px; }
.home .portal-card .tag { font-size: .69rem; }
.home .portal-card h3 a { text-decoration: none; }
.home .portal-card h3 a:hover { text-decoration: underline; }
.home-latest { background: #e8f3fd; border-top: 1px solid var(--line); }
.home-latest .post-card h3 { text-transform: none; }


.top .wrap { display: grid; grid-template-columns: auto minmax(0, 1fr) minmax(120px, 220px); gap: .35rem clamp(.5rem, 1.6vw, 1.2rem); }
.top nav ul { justify-content: flex-start; }
.header-search { display: flex; min-width: 0; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.header-search:focus-within { outline: 2px solid var(--accent); }
.header-search input { width: 100%; min-width: 0; border: 0; padding: .4rem .55rem; background: transparent; color: var(--ink); font: inherit; font-size: .85rem; }
.header-search input:focus-visible { outline: none; }
.header-search button { display: grid; place-items: center; flex: 0 0 34px; min-height: 34px; padding: 0; border: 0; border-radius: 0 7px 7px 0; background: var(--accent); color: white; cursor: pointer; }
@media (max-width: 900px) {
    .top nav a { padding-inline: .35rem; font-size: .73rem; }
}
@media (max-width: 760px) {
    .top .wrap { grid-template-columns: auto minmax(0, 1fr); }
    .header-search { grid-column: 2; grid-row: 1; width: min(100%, 220px); justify-self: end; }
    .top nav { grid-column: 1 / -1; }
    .top nav a { font-size: clamp(.65rem, 2.5vw, .8rem); }
    .top .brand-wordmark { font-size: clamp(1.1rem, 4.1vw, 1.4rem); }
}

.foot {
    --footer-line: #a8d1ff30;
    --footer-muted: #bed2e8;
    margin-top: 2rem;
    border-top: 3px solid #5d9fe1;
    background: linear-gradient(120deg, #173c62, #102942 55%, #0d233c);
    color: #f4f8ff;
}
.home .foot { margin-top: 0; }
.foot a { color: inherit; }
.foot a:hover { color: #bde3ff; }
.foot a:focus-visible { outline-color: #a7dcff; }
.footer-main {
    display: grid;
    grid-template-columns: minmax(0, .75fr) minmax(0, 1.4fr) minmax(0, 1.05fr);
    align-items: start;
    gap: clamp(1rem, 3vw, 2.5rem);
    padding-block: clamp(1.7rem, 4vw, 3rem);
}
.footer-identity-heading {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    align-items: center;
    gap: .8rem;
}
.footer-identity-heading strong { font-size: 1.05rem; line-height: 1.35; text-wrap: balance; }
.footer-brand { display: block; border-radius: 10px; }
.footer-brand img { display: block; border-radius: inherit; }
.footer-identity p { max-width: 30ch; margin: .85rem 0 0; color: var(--footer-muted); font-size: .9rem; }
.foot .footer-about {
    display: inline-flex;
    align-items: center;
    gap: .4em;
    margin-top: .65rem;
    color: #bde3ff;
    font-size: .88rem;
    font-weight: 700;
    text-decoration: none;
}
.foot .footer-about:hover { color: white; text-decoration: underline; }
.footer-main h2 {
    margin: 0 0 .85rem;
    padding-bottom: .65rem;
    border-bottom: 1px solid var(--footer-line);
    color: #c5e3ff;
    font-size: .85rem;
    font-weight: 800;
    letter-spacing: .09em;
    text-transform: uppercase;
}
.footer-articles, .footer-contact {
    padding-inline-start: clamp(1rem, 3vw, 2.5rem);
    border-inline-start: 1px solid var(--footer-line);
}
.footer-latest, .contact-details {
    display: grid;
    gap: .7rem;
    margin: 0;
    padding: 0;
    list-style: none;
    overflow-wrap: anywhere;
}
.footer-latest a {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: .75rem;
    align-items: center;
    font-size: .9rem;
    line-height: 1.4;
    font-weight: 650;
    text-decoration: none;
}
.footer-latest a:hover .footer-post-copy > span { text-decoration: underline; }
.footer-post-thumb {
    display: block;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 50%;
    background: #2a4969;
    box-shadow: 0 0 0 1px var(--footer-line);
}
.footer-post-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; }
.footer-post-copy time { display: block; margin-top: .18rem; color: var(--footer-muted); font-size: .78rem; font-weight: 400; }
.contact-details { gap: .45rem; font-size: .9rem; }
.contact-details li {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    gap: .65rem;
    align-items: start;
    line-height: 28px;
}
.contact-details svg {
    box-sizing: content-box;
    width: 16px;
    height: 16px;
    padding: 6px;
    border-radius: 8px;
    background: var(--contact-icon-background, #1454b812);
    fill: none;
    stroke: var(--contact-icon-color, var(--accent));
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.footer-contact { --contact-icon-background: #9ad3ff1a; --contact-icon-color: #a7dcff; }
.footer-contact a { text-decoration: none; }
.footer-contact a:hover { text-decoration: underline; }
.footer-links-band { border-top: 1px solid var(--footer-line); background: #091b2f; }
.footer-partners { padding-block: .85rem; }
.footer-partners ul { justify-content: center; gap: .35rem .5rem; }
.footer-partners ul ul { padding-inline-start: .8rem; }
.footer-partners a {
    display: inline-block;
    padding: .25rem .65rem;
    border: 1px solid var(--footer-line);
    border-radius: 6px;
    color: var(--footer-muted);
    font-size: .82rem;
    overflow-wrap: anywhere;
}
.footer-partners a:hover { background: #a7dcff16; }
.footer-copyright {
    margin-block: 0;
    padding: 0 0 .85rem;
    color: var(--footer-muted);
    font-size: .8rem;
    text-align: center;
}
@media (max-width: 760px) {
    .footer-main { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-identity { grid-column: 1 / -1; }
    .footer-identity-heading { grid-template-columns: 64px minmax(0, max-content); }
    .footer-articles { padding-inline-start: 0; border-inline-start: 0; }
}
@media (max-width: 520px) {
    .footer-main { grid-template-columns: minmax(0, 1fr); gap: 1.45rem; }
    .footer-contact { padding-inline-start: 0; border-inline-start: 0; }
}



.home .hero {
    background: radial-gradient(ellipse at 78% 22%, #c6e5ff 0%, transparent 58%),
        linear-gradient(135deg, #f4faff, #dfedfb);
}
.home .hero-layout {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: clamp(1.5rem, 4vw, 4rem);
}
.home .hero h1 { line-height: 1.08; }
.home .home-feature {
    display: grid;
    aspect-ratio: 1.48;
    align-items: end;
    isolation: isolate;
    background: #123252;
    border: 0;
    box-shadow: 0 18px 36px #12325226;
}
.home-feature img, .home-feature::after {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}
.home-feature::after {
    content: "";
    background: linear-gradient(0deg, #081c32f5 0%, #081c32db 16%, transparent 68%);
}
.home .home-feature-copy { color: white; }
.home .hero-feature-copy { position: relative; z-index: 1; padding: clamp(1rem, 2.4vw, 1.65rem); }
.home .home-feature .tag { color: #b3d9ff; }
.home .home-feature strong { color: white; font-size: clamp(1.05rem, 2vw, 1.45rem); }
.home .home-feature:hover strong { text-decoration: underline; }
.home .home-feature-arrow { color: white; align-self: end; }
.home .section-heading .tag { margin-bottom: .35rem; }
.portal-status { background: var(--paper); border: 1px solid var(--line); border-radius: 999px; padding: .2rem .65rem; color: var(--muted); font-size: .74rem; font-weight: 700; }
.home .portal-card { padding: clamp(1rem, 2vw, 1.5rem); }
.home .portal-card h3 { font-size: 1.25rem; }
.home .portal-card p { font-size: .93rem; }
.home-latest { background: #eaf3fc; }
.home-latest .post-card .post-card-meta { font-size: .8rem; }
.home-latest .post-card-meta a { color: var(--muted); text-decoration: none; }
.home-latest .post-card-meta a:hover { text-decoration: underline; }
@media (max-width: 700px) {
    .home .hero-layout { grid-template-columns: minmax(0, 1fr); }
}

.hvacvn-catalog .site-main { width: min(var(--width), 92%); margin: 0 auto; padding: clamp(1.25rem, 4vw, 2.75rem) 0; }
.hvacvn-catalog .woocommerce-breadcrumb { color: var(--muted); }
.hvacvn-catalog .woocommerce-products-header { margin-bottom: 1.5rem; padding: clamp(1.1rem, 4vw, 2rem); background: linear-gradient(120deg, var(--sky), #f9fcff); border: 1px solid var(--line); border-radius: var(--radius); overflow-wrap: anywhere; }
.hvacvn-catalog .woocommerce-products-header h1 { margin: 0; font-size: clamp(2rem, 4.5vw, 3.2rem); }

.hvacvn-catalog .woocommerce-ordering { max-width: 100%; }
.hvacvn-catalog .woocommerce-ordering select { max-width: 100%; background: white; border: 1px solid var(--line); border-radius: 8px; padding: .5rem; color: var(--ink); font: inherit; }
.hvacvn-catalog ul.products {
    clear: both;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}
.hvacvn-catalog ul.products::before, .hvacvn-catalog ul.products::after { display: none; }
.hvacvn-catalog ul.products li.product {
    display: flex;
    flex-direction: column;
    float: none;
    width: auto;
    min-width: 0;
    margin: 0;
    padding: .85rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: white;
    overflow-wrap: anywhere;
}
.hvacvn-catalog ul.products li.product a img {
    aspect-ratio: 4 / 3;
    object-fit: contain;
    border-radius: 9px;
    margin: 0;
    background: white;
}
.hvacvn-catalog ul.products li.product .woocommerce-loop-product__title { font-size: 1rem; line-height: 1.4; color: var(--ink); }
.hvacvn-catalog ul.products li.product .button { align-self: flex-start; margin: auto 0 0; color: var(--accent); background: var(--paper); border-radius: 8px; }
.hvacvn-catalog nav.woocommerce-pagination ul { display: inline-flex; flex-wrap: wrap; justify-content: center; gap: .25rem; border: 0; }
.hvacvn-catalog nav.woocommerce-pagination ul li { border: 0; }
.hvacvn-catalog nav.woocommerce-pagination .page-numbers li > * { border: 1px solid var(--line); border-radius: 7px; }
.hvacvn-catalog nav.woocommerce-pagination .page-numbers .current { background: var(--accent); color: white; }
@media (max-width: 950px) { .hvacvn-catalog ul.products { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 680px) { .hvacvn-catalog ul.products { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 360px) { .hvacvn-catalog ul.products { grid-template-columns: minmax(0, 1fr); } }

.product-category-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 270px);
    align-items: start;
    gap: clamp(1rem, 3vw, 2rem);
    padding-block: clamp(1.25rem, 4vw, 2.75rem);
}
.product-category-layout > #primary { grid-column: 1; grid-row: 1; min-width: 0; }
.hvacvn-catalog .product-category-layout .site-main { width: 100%; padding: 0; }
@media (min-width: 901px) { .hvacvn-catalog .product-category-layout ul.products { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.product-category-sidebar {
    grid-column: 2;
    grid-row: 1;
    background: white;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: .85rem 1rem;
    min-width: 0;
}
.product-category-sidebar summary { font-weight: 800; cursor: pointer; }
.product-category-sidebar nav { margin-top: .75rem; padding-top: .55rem; border-top: 1px solid var(--line); }
.product-category-sidebar ul { display: block; }
.product-category-sidebar li > ul { display: none; margin-inline-start: .45rem; padding-inline-start: .5rem; border-inline-start: 1px solid var(--line); }
.product-category-sidebar :is(.current-cat, .current-cat-parent, .current-cat-ancestor) > ul { display: block; }
.product-category-sidebar nav a { display: block; padding: .4rem .5rem; border-radius: 7px; overflow-wrap: anywhere; }
.product-category-sidebar a[aria-current="page"], .product-category-sidebar .current-cat > a { color: white; background: var(--accent); }
.product-category-sidebar .product-catalog-link { margin-bottom: .2rem; }
@media (min-width: 901px) {
    .product-category-sidebar { position: sticky; top: 88px; max-height: calc(100dvh - 100px); overflow: auto; }
    .admin-bar .product-category-sidebar { top: 120px; max-height: calc(100dvh - 132px); }
}
@media (max-width: 900px) {
    .product-category-layout { grid-template-columns: minmax(0, 1fr); }
    .product-category-sidebar { grid-column: 1; grid-row: auto; }
    .product-category-layout > #primary { grid-row: auto; }
}




.hvacvn-product-detail .product-category-layout .site-main { width: 100%; min-width: 0; }
.hvacvn-product-detail .woocommerce-breadcrumb { color: var(--muted); overflow-wrap: anywhere; }
.hvacvn-product-detail div.product {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(1rem, 2.4vw, 1.75rem);
    overflow-wrap: anywhere;
}
.hvacvn-product-detail div.product > * { grid-column: 1 / -1; min-width: 0; }
.hvacvn-product-detail.woocommerce div.product > :is(.woocommerce-product-gallery, .summary, .woocommerce-tabs) {
    float: none;
    width: 100%;
    margin: 0;
    padding: clamp(.85rem, 2vw, 1.5rem);
    background: white;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.hvacvn-product-detail div.product > .woocommerce-product-gallery { grid-column: 1; }
.hvacvn-product-detail div.product > .summary { grid-column: 2; }
.hvacvn-product-detail div.product .product_title { margin: 0 0 .8rem; font-size: clamp(1.5rem, 2.7vw, 2.3rem); }
.hvacvn-product-detail div.product .summary .price { color: var(--accent-dark); font-size: 1.25rem; font-weight: 750; }
.hvacvn-product-detail div.product .product_meta { display: grid; gap: .35rem; border-top: 1px solid var(--line); padding-top: .9rem; color: var(--muted); font-size: .88rem; }
.hvacvn-product-detail div.product form.cart .button { background: var(--accent); color: white; border-radius: 8px; }
.hvacvn-product-detail div.product .woocommerce-tabs ul.tabs { display: flex; flex-wrap: wrap; gap: .4rem; padding: 0; }
.hvacvn-product-detail div.product .woocommerce-tabs ul.tabs li { margin: 0; border-radius: 7px; border-color: var(--line); }
.hvacvn-product-detail div.product .woocommerce-tabs ul.tabs li::before,
.hvacvn-product-detail div.product .woocommerce-tabs ul.tabs li::after { display: none; }
.hvacvn-product-detail div.product .woocommerce-tabs .panel { overflow-x: auto; margin-bottom: 0; }
.hvacvn-product-detail div.product .woocommerce-tabs .panel h2,
.hvacvn-product-detail .related > h2 { font-size: 1.45rem; }
.hvacvn-product-detail.woocommerce .related ul.products li.product {
    width: 100%;
    float: none;
    clear: none;
    margin: 0;
}
@media (max-width: 900px) {
    .hvacvn-product-detail .product-category-layout > #primary { grid-row: 1; }
}
@media (max-width: 620px) {
    .hvacvn-product-detail div.product { grid-template-columns: minmax(0, 1fr); }
    .hvacvn-product-detail div.product > .summary { grid-column: 1; }
}





.image-viewer {
    position: fixed;
    max-width: calc(100vw - 2rem);
    max-height: calc(100dvh - 2rem);
    padding: 0;
    border: 0;
    border-radius: 12px;
    overflow: auto;
    background: #102843;
    color: white;
    overscroll-behavior: contain;
}
.image-viewer::backdrop { background: #071626e8; }
.image-viewer img {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: calc(100dvh - 2rem);
    object-fit: contain;
}
.image-viewer img[hidden] { display: none; }
.image-viewer form { position: absolute; z-index: 1; top: .6rem; right: .6rem; }
.image-viewer button {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 1px solid #ffffff80;
    border-radius: 50%;
    background: #102843;
    color: white;
    font: 1.7rem/1 system-ui, sans-serif;
    cursor: pointer;
}
.image-viewer button:focus-visible { outline-color: #a9d9ff; }
.image-viewer-error { margin: 0; padding: 3.6rem 1.25rem 1.25rem; }
.image-viewer-error a { color: white; }



.home-slider { position: relative; min-width: 0; }
.home .home-feature[hidden], .home-slider-controls[hidden] { display: none; }
.home-slider-controls {
    position: absolute;
    z-index: 2;
    inset-block-start: .75rem;
    inset-inline-end: .75rem;
    display: flex;
    align-items: center;
    gap: .25rem;
    padding: .2rem;
    border-radius: 999px;
    background: #102843ed;
    color: white;
    font-size: .8rem;
    font-variant-numeric: tabular-nums;
}
.home-slider-controls button {
    display: grid;
    place-items: center;
    min-width: 38px;
    min-height: 38px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: white;
    font: inherit;
    font-size: 1.1rem;
    cursor: pointer;
}
.home-slider-controls button:hover { background: #ffffff30; }
.home-slider-controls button:focus-visible { outline-color: #b3d9ff; outline-offset: -2px; }




.pdf-reader-source .wp-block-file__embed { display: none; }
.pdf-reader-holder { margin-block: .85rem 1.5rem; }
.pdf-reader {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    height: clamp(380px, 72dvh, 680px);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    background: white;
    color: var(--ink);
}
.pdf-viewer {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    margin: 0;
    padding: 0;
    border: 0;
    background: #16283c;
    color: white;
}
.pdf-viewer .pdf-reader { height: 100%; border: 0; border-radius: 0; }
.pdf-viewer::backdrop { background: #081625; }
.pdf-viewer-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .5rem;
    padding: .65rem clamp(.65rem, 2vw, 1.25rem);
    background: white;
    border-bottom: 1px solid var(--line);
}
.pdf-viewer-toolbar button, .pdf-viewer-toolbar input {
    min-height: 36px;
    padding: .4rem .7rem;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--paper);
    color: var(--ink);
    font: inherit;
    font-size: .85rem;
}
.pdf-viewer-toolbar button {
    cursor: pointer;
}
.pdf-viewer-toolbar input { width: 4.25rem; }
.pdf-viewer-toolbar :is(.pdf-reader-expand, .pdf-reader-close) { margin-inline-start: auto; background: var(--accent); color: white; font-weight: 700; }
.pdf-viewer-stage { min-height: 0; overflow: auto; overscroll-behavior: contain; touch-action: pan-x pan-y pinch-zoom; text-align: center; container-type: size; background: var(--paper); }
.pdf-viewer-stage p { margin: .65rem; }
.pdf-viewer-document { width: calc(min(1100px, 100% - 28px) * var(--pdf-zoom, 1)); margin-inline: auto; padding-block: 14px 75cqh; }
.pdf-viewer-sheet { background: white; }
.pdf-viewer-sheet + .pdf-viewer-sheet { margin-top: 14px; }
.pdf-viewer-sheet canvas { display: block; width: 100%; height: 100%; }
.pdf-reader iframe { width: 100%; height: calc(100% - 3rem); border: 0; background: white; }
.pdf-viewer-pages { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem; font-size: .85rem; }
.pdf-viewer-pages label { display: flex; align-items: center; gap: .25rem; }
.pdf-viewer-pages button:disabled { opacity: .45; cursor: default; }
.pdf-reader-footer { padding: .55rem .85rem; border-top: 1px solid var(--line); font-size: .85rem; }
.pdf-reader [hidden] { display: none; }
.pdf-viewer .pdf-viewer-toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
}
.pdf-viewer .pdf-viewer-pages { grid-column: 2; justify-content: center; }
.pdf-viewer .pdf-reader-close { grid-column: 3; justify-self: end; }
@media (max-width: 520px) {
    .pdf-viewer .pdf-viewer-toolbar { display: flex; justify-content: center; gap: .3rem; }
    .pdf-viewer .pdf-viewer-pages { gap: .2rem; }
    .pdf-viewer .pdf-viewer-toolbar :is(button, input) { padding-inline: .35rem; }
    .pdf-viewer .pdf-viewer-toolbar input { width: 3rem; }
    .pdf-viewer .pdf-reader-close { margin-inline-start: 0; }
}
html:has(.pdf-viewer[open]) { overflow: hidden; }